cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A229685 T(n,k) = number of defective 3-colorings of an n X k 0..2 array connected diagonally and antidiagonally with exactly two mistakes, and colors introduced in row-major 0..2 order.

Table of values

n a(n)
1 0
2 0
3 0
4 0
5 2
6 0
7 0
8 36
9 36
10 0
11 0
12 360
13 888
14 360
15 0
16 0
17 2688
18 10896
19 10896
20 2688
21 0
22 0
23 17280
24 108000
25 186576
26 108000
27 17280
28 0
29 0
30 101376
31 959040
32 2700432
33 2700432
34 959040
35 101376
36 0
37 0
38 559104
39 7952256
40 35485776
41 58038768
42 35485776
43 7952256
44 559104
45 0
46 0

List of values

[0, 0, 0, 0, 2, 0, 0, 36, 36, 0, 0, 360, 888, 360, 0, 0, 2688, 10896, 10896, 2688, 0, 0, 17280, 108000, 186576, 108000, 17280, 0, 0, 101376, 959040, 2700432, 2700432, 959040, 101376, 0, 0, 559104, 7952256, 35485776, 58038768, 35485776, 7952256, 559104, 0, 0]